spelling correction using context

... phrase context. 1. Introduction This paper describes how context- dependent spell- ing correction is performed in a natural language dialogue system under control of the parser. Our spelling correction ... substitutions and two extra characters. Handling errors of this sort is problematic for 361 Spelling Correction Using Context* Mohammad Ali Elmi and Martha Evens Department of Computer Science, Illinois ... speech-understanding systems. There are about 4,500 words in our lexicon. 2. Spelling Correction Method The first step in spelling correction is the detection of an error. There are two possibilities:...

Ngày tải lên: 20/02/2014, 18:20

Ngày tải lên: 23/03/2014, 20:21

... of Korea, 8-14 July 2012. c 2012 Association for Computational Linguistics Grammar Error Correction Using Pseudo-Error Sentences and Domain Adaptation Kenji Imamura, Kuniko Saito, Kugatsu Sadamitsu, ... grammar error correction for Japanese particles that uses discrimina- tive sequence conversion, which corrects erro- neous particles by substitution, insertion, and deletion. The error correction ... Japanese particle errors. This task corresponds to preposition/article error correction in English. For English error correction, many stud- ies employ classifiers, which select the appropriate prepositions/articles,...

Ngày tải lên: 19/02/2014, 19:20

... Robert L. Mercer. 1991. Context based spelling correction. Information Processing Management, 27(5).'517-522. Masaaki Nagata. 1996. Context- based spelling correction for japanese ocr. ... very large market for OCR related applications. OCR error correction can be thought of a spelling correction problem. Although spelling correction has been studied for several decades (Kukich, ... simplicity, we will present the method as if it were for an isolated word error correction. In English spelling correction, correction candi- dates are generated by the minimum edit distance technique...

Ngày tải lên: 20/02/2014, 18:20

... to partially reconstruct that context. We define the contextual space X(m) of a men- tion m as a mixture of 4 types of contexts with λ k as the mixing coefficient of context x k . The four con- texts ... nested) contextual space around the queried mention. We assume that all mentions in an email share the same contextual space. Therefore, we can treat the context of a mention as the context of ... 3.2.2. 3.2.2 Context Reconstruction In this section, we describe how each context is constructed. Local Context: Since this is simply e m , all of the probability mass is assigned to it. Conversational Context: ...

Ngày tải lên: 08/03/2014, 01:20

... attachment. 5 Contextually Similar Words The contextually similar words of a word w are words similar to the intended meaning of w in its context. Below, we describe an algorithm for constructing contextually ... automatically parsed corpus. Attachment decisions are made using a linear combination of features and low frequency events are approximated using contextually similar words. Introduction Prepositional ... their contextually similar words and compute the average adverbial attachment score. Similarly, the average adjectival attachment score is computed by replacing N 1 and N 2 by their contextually...

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Ngày tải lên: 23/03/2014, 19:20

... Context As we described in Section 1, using only local in- formation about the target verb phrase may lead to inaccurate correction of tense/aspect errors. Thus, we take into account global context: ... corrections. 5 The annotated tense/aspect labels include 12 combinations of tense (past, present, future) and aspect (nothing, perfect, progressive, perfect progressive). 3 Error Correction Using ... syntactic features and tense/aspect tagging. 4.2 Classifiers Because we want to know the effect of using global context information with CRF, we trained a one- versus-rest multiclass SVM and a maximum...

Ngày tải lên: 07/03/2014, 18:20

... Mays, Fred J. Damerau and Robert L. Mercer. 1991. Context Based Spelling Correction. IP&M, pp. 517-522. Masaaki Nagata. 1996. Context- Based Spelling Correc- tion for Japanese OCR. Proceedings ... conclusion. 2 Spelling Error Correction with Jaso Transition 4 Probabilities We can use Eumjeol transition probabilities or Jaso transition probabilities for spelling error correction for ... Model for Word Spacing and Spelling Error Correction 3.1 Problem Definition Given a sentence T which includes both word spacing errors and spelling errors, we create correction candidates C...

Ngày tải lên: 20/02/2014, 12:20

... approach to this problem examines the pos- sibility of utilizing context information in a given language pair. Under a given target context, the cor- responding source word of a given target word ... translation pair is given, then the related target or source context is predictable. This implies that if we considered bilin- gual context information in a given language pair during decoding, ... translation performance. It works through reciprocal incorpo- ration between source and target context: source words are determined by the context of previous and corresponding target words, and the next target words...

Ngày tải lên: 20/02/2014, 15:20

... and Yves Schabes. 1996. Combin- ing trigram-based and feature-based methods for context- sensitive spelling correction. In Proceedings of the 34th Annual Meeting of the Association for Computational ... the most typical synonym in context, and gave a solution that relies on a generalization oflexical co-occurrence. The results show that a narrow window of training context (-t-4 words) works ... necessary. We are planning to extend the model to account for more structure in the narrow window of context. Acknowledgements For comments and advice, I thank Graeme Hirst, Eduard Hovy, and Stephen...

Ngày tải lên: 22/02/2014, 03:20

... Development of climate change scenarios for small areas in Vietnam by using the MAGICC/SCENGEN software in combination with statistic correction Hoang Duc Cuong* Vietnam Institute of Meteorology, ... paper concerns on the application of MAGICC/SCENGEN 5.3 software in combination with statistic correction to develop climate change scenarios for small areas in Vietnam. Results showed that ... [10-12,5 0 N/105-107,5 0 E] covering Da Nang, Quy Nhon and Can Tho respectively. ♦ Statistic correction To supplement regional features in climate change scenarios, we have used statistic...

Ngày tải lên: 05/03/2014, 16:20